Remove GenericPort_Write for SimpleLink

[josesimoes]

Description

• Remove GenericPort_Write for SimpleLink.

Motivation and Context

• Despite the check for the debugger flag, this is prone to causing issues during transitory conditions when the debugger flag is being set and the device could sending data over the UART, thus potentially causing issues with the Wire Protocol decoding in VS.

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Config and build (change in the configuration and build system, has no impact on code or features)
• Dependencies (update dependencies and changes associated, has no impact on code or features)
• Unit Tests (work on Unit Tests, has no impact on code or features)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.